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udhcpc: Don't background if -n is given
we need add -b to our udhcpc options to prevent boot forever if there are no
dhcp server. We also need a way for users to disable this behavior by making
it possible to set -n option at runtime.
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 6aa6731fb..2c0307413 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -1504,19 +1504,19 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
}
leasefail:
udhcp_run_script(NULL, "leasefail");
+ if (opt & OPT_n) { /* abort if no lease */
+ bb_error_msg("no lease, failing");
+ retval = 1;
+ goto ret;
+ }
#if BB_MMU /* -b is not supported on NOMMU */
if (opt & OPT_b) { /* background if no lease */
bb_error_msg("no lease, forking to background");
client_background();
/* do not background again! */
opt = ((opt & ~OPT_b) | OPT_f);
- } else
-#endif
- if (opt & OPT_n) { /* abort if no lease */
- bb_error_msg("no lease, failing");
- retval = 1;
- goto ret;
}
+#endif
/* wait before trying again */
timeout = tryagain_timeout;
packet_num = 0;
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